Which of the following does NOT occur during interphase? 1.each chromosome replicates

2.the nucleus disappears

3.microtubules extend from centrosomes

4.centrosomes are duplicated​

Which of the following represents a negatively charged ion? of t 7

Ecologist have observed a sharp increase of sulfur dioxide in the air . what might be a possible consequence of excessive sulfur dioxide in the air ? a. acid rain b. ozone layer depletion c.ozone layer hole d.increase in sea levels

What organ systems are working to you cool down after a workout?